Check the Wattage Before You Install a Dimmer Switch

Make sure the one you chose can handle the wattage

Not all dimmer switches are the same, and if you buy one that's not rated for the total wattage of the lights it controls, you could have problems. Check the fine print before you buy.

By the DIY experts of The Family Handyman Magazine:October 2011

Read the labels

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Check the rating

Make sure
the wattage
rating on
your new
dimmer is
at least as
high as
the old
one.

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CFL compatibility

If you're dimming CFL bulbs or LED bulbs, make sure you buy a switch that can handle the wattage and that can be used with those types of bulbs.

If you’re installing a dimmer
switch, keep in mind that each
switch is rated to handle a maximum
wattage. If you’re trying to
dim six 100-watt lightbulbs, use
a switch rated for at least 600
watts. Newer models are fairly
generous with their allowances
(usually about
600 watts),
but that won’t
cut it if you’re
trying to
dim seven
100-watt bulbs.

Tools & Materials List

Required Tools for this Project

Have the necessary tools for this DIY project lined up before you start—you’ll save time and frustration.

Required Materials for this Project

Avoid last-minute shopping trips by having all your materials ready ahead of time. Here's a list.